School-slate



(No Model.)

J. HAGKEN'BERG.

7 SCHOOL SLATE. No. 388,129. Patented Aug. 21, I888.

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NITE STATES ATENT FFICE.

JULIUS HAGKENBERG, OF PASSAIO, NEV JERSEY.

SCHOOL-SLATE.

SPECIFICATION forming part of Letters Patent No. 388,129, date-cl August21, 1888.

Application tiled May 15, 1888.

, useful Improvements in School-Slates,0f which the following is aspecification.

This invention has reference to school-slates of that class in which apart of the frame is utilized as a receptacle for slate-pencils; and

the invention consists of a school slate the frame of which is madethicker at one side and gradually tapering toward the other side, so asto provide in the thicker side portion of the frame a longitudinalreceptacle for the slatepeneils, which receptacle is closed by aslidinglid. The thicker portion of the frame is provided at the opposite cornerwith a pencilsharpening device that is composed of blades with V-shapedrecesses, which are arranged at right angles to each other and sharpenedat the edges, said blades being set into a socket of the thicker portionand retained in the same by a fastening-plate having an openingforinserting the pencil for sharpening the same.

In the aecom panying drawings, Figure 1 represents a side elevation ofmy i mprovcd schoolslate. Fig. 2is a vertical longitudinal sectionthrough the thicker portion of the frame ofthe slate, said figure beingdrawn on a large scale. Fig. 3 is a vertical transverse section of theslate on line 0c :0, Fig. 1, also drawn on alarger scale. Figs. 4 and 5are end views of the slate, showing, respectively, the sliding lid ofthe pencilreceptacle and the pencil-sharpening device. Fig. 6 is adetail vertical transverse section on line y 9, Fig. 2; and Fig. 7 aredetail views of the blades forming the pencilsharpening device.

Similar letters of reference indicate corre sponding parts.

In the drawings, A represents the frame of my improved school-slate,which frameis made thicker at one side and tapering from said thickerside toward the opposite side, which is of normal thickness. In thethicker side portion is arranged a longitudinal receptacle, P, for thepencils, said receptacle being closed at the end by a sliding lid, 0,which is guided by a slot, (1, along a headed stud, (1, attached to theend of the frame A. The lid Chas a bent-up lid, (Z at the outer end fortaking hold of the sliding lid in opening or closing the receptacle. Thelid 0 is set into a recess or depression, (l of the frame A, as shownclearly in Figs. 2 and 4, so as to be flush with the frame A. By openingthe sliding lid 0 the pencils can be readily removed from or replacedinto the receptacle 13, they being stored away in the receptacle in aconvenient manner and always ready for use when reqnired, so as todispense thereby with a separate receptacle or box for the slatepencils.

In the opposite corner of the thickened side portion of the frame A isarranged a socketmortise, I), into which the slatesharpening deviceDissecured, which consists of two blades, 6 6, having \I-shaped recesses e,that are sharpened at their edges, one blade having a central recess, 0at its base or butt-end, so as to interlock with the butt-end of theother blade, 0, at the apex of its elongated recess 0 when pushed overthe same at right angles thereto, as shown in Fig. 6. Vhen so 0011-nected, the blades 6 c are inserted into the socket b and retained inthe same by a face plate, f, having a central opening, f, for theinsertion of the pencil, said face-plate being attached by nails orscrews to the frame A, as shown in Fig. 5.

\Vheu it is desired to sharpen the slate-penoil, the point of the sameis inserted into the sharpening device and the pencil then turned on itsaxis, so that the sharpened edges of the blades sharpen the point of thepencil by a few turns of the same. steel and form a durable sharpenerfor the slate-pencil, which, owing to its simple eon struetion, can bereadily inserted and furnished with the slate, increasing but little thecost of the same.

A school-slate thus provided with a pencilreservoir and a sharpeningdevice for the pencils is very useful to school children, as it not onlydiminishes the loss and breakage of the The blades are made of pencils,but also facilitates the sharpening of 5 the same whenever the sameshould be necessary.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. Aschool-slatc the frame of which is made thickerat one side and tapering toward its other side, and provided with alongitudinal IOO other side, and provided with a pencil-sharpeningdevice secured into a socket in the thicker portion of the frame,substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

JULIUS HAOKENBERG.

Witnesses:

J. L. MoOLUsKEY, FRED. WHITEHEAD.

